Based on the opinions of the comments section, it is generally believed that IDO's project is a form of "promotion" because it involves spending money. Although the cost is not high, it is indeed due to real interaction and limited time. BNB Hodler is given for free, and although it is given less now, the quantity has increased in the past two months, and the quantity is used to subsidize the quality. However, it is true that the IDO income given by the wallet is still acceptable now. I missed it twice because I did not buy any Alpha tokens before. I will go and interact later.